FIFO Optimization - final summary

Ed Schouten ed at
Sat Aug 22 13:04:47 UTC 2009


* Zhao Shuai <zhaoshuai at> wrote:
> Hi All,
> This summer I worked on rewriting the FIFO(named pipe) subsystem.
> The new FIFO system uses pipe implementation while previously
> it is implemented as socket.
> The new FIFO code passes the official regression test and the following
> bugs has been eliminated: PR 76525,PR 94772,PR 76144,PR 116770.
> According to my performance test, the new FIFO system increases the
> throughput by 30% comparing with the old one.
> I will continue to improve my code after GSoC and hope it can be merged
> with the main tree.

I'm too lazy to read the source, check out sources, etc. but the pipe
and fifo code has now been merged, right? Just out of curiosity, how do
these changes affect the kernel binary size? How many lines of code have
been added/removed?

 Ed Schouten <ed at>
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